1
Find the album ID
Open the album on Facebook in your browser. The album ID is the long number in the address bar. In many album links, it comes after
set=a.. For example, in ...?set=a.102433051113377&type=3 the album ID is 102433051113377.2
Start a new Facebook widget
If this is your first widget, click Choose A Service on your dashboard. Select Facebook, then Grid, Board, Slideshow or Scrolling.If you already have widgets, click New Widget and select the layout under Social feeds. In step 2, select your Facebook account, or click Connect New Account, then Facebook, and select the page when Facebook asks which pages SnapWidget can use. Then click Create Widget, and go to Enter the album ID.
3
Connect your Facebook account
Click Connect in the Connected Account box. Log in with the Facebook account that manages the page, and select the page when Facebook asks which pages SnapWidget can use.
4
Enter the album ID
Set Source to Page Album. In Page Album Id, enter only the number. Do not enter 
a. or the full link. The preview shows the photos.
5
Get your code
Change the other settings on the Basic tab. Then click Install Widget. In the Install Widget window, click Copy Code. Paste the code into your website.